Bismutotantalite Value, Price, and Jewelry Information

Extremely rare as a cut gem, even in very complete collections. Manu of the minerals in the tantalite group have been faceted; bismutotantalite is perhaps the rarest of them all. The color is attractive, but low hardness and good cleavage make use in jewelry unadvisable.

COMMENTS: Extremely rare as a cut gem, even in very complete collections. Manu of the minerals in the tantalite group have been faceted; bismutotantalite is perhaps the rarest of them all. The color is attractive, but low hardness and good cleavage make use in jewelry unadvisable.